
First thing I would ask, why do you need wood chips?
My setup: I have a small electric wood chipper that is good up to 1.5 inches. That is great for really small jobs, like picking up dropped branches around the house after a good wind blow. Cost was less than $150.00.
I have an older larger gas wood chipper that is good up to 3.0 inches. Current price around $1,200.00. Much faster than the electric chipper, but the gas chipper can be a pain in the butt to get running at times. If I have a big cleanup, then I will take out the gas chipper.
Anything around 3.0 inches or larger gets cut up and thrown on my wood burning pile. That's firewood for me. Or, I might use some of that wood as the base of a new hügelkultur bed.
I have used wood chips in my chicken coop and run. Wood chips are great for coop litter, mulch around the plants, walkways, hügelkultur gardens, etc... I do feel good about making wood chips instead of just burning the wood debris. Nothing organic leaves my home. I find a use for it somewhere.
Having said that, I discovered that I could get all the free wood chips I can haul from our local county landfill. It takes me about 20 minutes to load up my trailer full of wood chips that will last me more than a year. If I had to chip that volume at home with even my gas chipper, I would be spending hours and hours on the project. If I need lots of wood chips, I just go to the landfill and load up the trailer. Much better use of my time and labor.
Let me add, that last winter I used paper shreds I make at home instead of using wood chips as bedding in the coop, and I had great success with the paper shreds. I will be using paper shreds again this winter in the coop. In other words, I don't really use much wood chips anymore. The wood I do chip up at home is used in Dear Wife's flower gardens as mulch, and I will still toss wood chips into the coop for deep bedding and chicken run to compost.
If/when my gas and electric chippers die, I will not replace them. Not when I can get free wood chips just down the road.
I tried to contact some local arborists about chipping up my larger wood, but their machines only go up to 6 inches, and after that they buck up the wood and throw it into their truck. Basically, they can chip up most branches of a tree, but the tree trunk itself has to be cut up into rounds and hauled off. Your local arborists might have heavier machines, and it might be worth asking how much they would charge to chip up your wood and leave it with you.
Those big commercial units are crazy expensive, and I could never justify that cost for my 3 acres of wooded land. Especially now that I know I can get free wood chips from the landfill.
If you have local access to free wood chips, or if you can get on chipdrop.com for a shipment, then you might not be very interested in buying a wood chipper. But, I guess it depends on what you really need the wood chips for and how much do you need?